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Bridgwater, United Kingdom

Lenard J.,Loughborough University | Badea-Romero A.,Technical University of Madrid | Danton R.,GBB UK Ltd.
Accident Analysis and Prevention | Year: 2014

An increasing proportion of new vehicles are being fitted with autonomous emergency braking systems. It is difficult for consumers to judge the effectiveness of these safety systems for individual models unless their performance is evaluated through track testing under controlled conditions. This paper aimed to contribute to the development of relevant test conditions by describing typical circumstances of pedestrian accidents. Cluster analysis was applied to two large British databases and both highlighted an urban scenario in daylight and fine weather where a small pedestrian walks across the road, especially from the near kerb, in clear view of a driver who is travelling straight ahead. For each dataset a main test configuration was defined to represent the conditions of the most common accident scenario along with test variations to reflect the characteristics of less common accident scenarios. Some of the variations pertaining to less common accident circumstances or to a minority of casualties in these scenarios were proposed as optional or supplementary test elements for an outstanding performance rating. Many considerations are incorporated into the final design and implementation of an actual testing regime, such as cost and the state of development of technology; only the representation of accident data lay within the scope of this paper. It would be desirable to ascertain the wider representativeness of the results by analysing accident data from other countries in a similar manner. © 2014 Elsevier Ltd. Source


Hoyes P.,GBB UK Ltd.
Accident; analysis and prevention | Year: 2013

In motor vehicle collisions there is a well-established relationship between the level of damage sustained by the vehicle, its change in speed during the collision period, the movement of occupants and the potential for their injury. Greater damage, with respect to structure, means a greater potential for injury. In terms of rear-end impacts, speed change thresholds for injury have been suggested in previous literature. This research uses human test subjects and three full-scale vehicle, rear-end collisions to investigate the correlation between speed change and occupant movement and uses it to test the suggestion of a second threshold where the accelerations are similar to an everyday activity. Copyright © 2012 Elsevier Ltd. All rights reserved. Source


Hoyes P.,GBB UK Ltd. | Henderson B.,GBB UK Ltd.
Accident Analysis and Prevention | Year: 2013

In motor vehicle collisions there is a well-established relationship between the level of damage sustained by the vehicle, its change in speed during the collision period, the movement of occupants and the potential for their injury. Greater damage, with respect to structure, means a greater potential for injury. In terms of rear-end impacts, speed change thresholds for injury have been suggested in previous literature. This research uses human test subjects and three full-scale vehicle, rear-end collisions to investigate the correlation between speed change and occupant movement and uses it to test the suggestion of a second threshold where the accelerations are similar to an everyday activity. © 2012 Elsevier Ltd. All rights reserved. Source


Henderson B.,GBB UK Ltd. | Hall M.,GBB UK Ltd. | Hoyes P.,GBB UK Ltd.
International Journal of Vehicle Safety | Year: 2015

In a low-speed collision when a vehicle is struck in the rear, certain types of damage may occur that cause a breach between the interior of the vehicle and the outside atmosphere. In the presence of these types of damage it is often thought that the vehicle's own exhaust gases may be able to enter the interior of the vehicle. As a consequence that vehicle may be deemed unsafe for continued use. This report describes an investigation into the ingress of carbon monoxide and, by implication, other exhaust gas components into the interior of a vehicle through areas of simulated damage at the rear. The results indicate the propensity of exhaust gas ingress to the interior of a vehicle. Copyright © 2015 Inderscience Enterprises Ltd. Source

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